/*
 * @Descripttion   
 * @version        
 * @Author         Xiaoqi Lai
 * @Date           2021-09-05 16:01:11
 * @LastEditors    Xiaoqi Lai
 * @LastEditTime   2021-09-05 16:01:12
 */
#include "driver/i2c.h"
#include "oled_my.h"
#include "oledfont.h"
#include "stdint.h"



#define ACK_CHECK_EN 0x1  /*!< I2C master will check ack from slave*/
#define ACK_CHECK_DIS 0x0 /*!< I2C master will not check ack from slave */

#if OLED_MODE == 1
/**
  * @brief 向SSD1106写入一个字节
	* @param dat:要写入的数据/命令  cmd:数据/命令标志 0,表示命令;1,表示数据
	* @retval None
  */
void OLED_WR_Byte(uint8_t dat, uint8_t cmd)
{
    DATAOUT(dat);
    if (cmd)
        OLED_DC_Set();
    else
        OLED_DC_Clr();
    OLED_CS_Clr();
    OLED_WR_Clr();
    OLED_WR_Set();
    OLED_CS_Set();
    OLED_DC_Set();
}
#else

// 向OLED写入指令字节
//----------------------------------------------------------------------------
uint8_t OLED_Write_Command(uint8_t OLED_Byte)
{

    int ret, i2c_num = 0;
    i2c_cmd_handle_t cmd = i2c_cmd_link_create();
    i2c_master_start(cmd);
    i2c_master_write_byte(cmd, 0x78, ACK_CHECK_EN); //Slave address,SA0=0
    i2c_master_write_byte(cmd, 0x00, ACK_CHECK_EN); //Slave address,SA0=0
    i2c_master_write_byte(cmd, OLED_Byte, ACK_CHECK_EN);
    i2c_master_stop(cmd);
    ret = i2c_master_cmd_begin(i2c_num, cmd, 1000 / portTICK_RATE_MS);
    i2c_cmd_link_delete(cmd);

    return true; // 返回写入成功
}
//----------------------------------------------------------------------------

// 向OLED写入数据字节
//----------------------------------------------------------------------------
uint8_t OLED_Write_Data(uint8_t OLED_Byte)
{

    int ret, i2c_num = 0;
    i2c_cmd_handle_t cmd = i2c_cmd_link_create();
    i2c_master_start(cmd);
    i2c_master_write_byte(cmd, 0x78, ACK_CHECK_EN); //Slave address,SA0=0
    i2c_master_write_byte(cmd, 0x40, ACK_CHECK_EN); //Slave address,SA0=0
    i2c_master_write_byte(cmd, OLED_Byte, ACK_CHECK_EN);
    i2c_master_stop(cmd);
    ret = i2c_master_cmd_begin(i2c_num, cmd, 1000 / portTICK_RATE_MS);
    i2c_cmd_link_delete(cmd);

    return true; // 返回写入成功
}

/**
  * @brief 向SSD1106写入一个字节
	* @param dat:要写入的数据/命令 cmd:数据/命令标志 0,表示命令;1,表示数据;
	* @retval None
  */
void OLED_WR_Byte(uint8_t dat, uint8_t cmd)
{

    if (cmd)
        OLED_Write_Data(dat); // 写入数据
    else
        OLED_Write_Command(dat); // 写入指令
}
#endif

/**
  * @brief 清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样
	* @param None
	* @retval None
  */
void OLED_Set_Pos(unsigned char x, unsigned char y)
{
    OLED_WR_Byte(0xb0 + y, OLED_CMD);
    OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);
    OLED_WR_Byte((x & 0x0f) | 0x01, OLED_CMD);
}

/**
  * @brief 开启OLED显示
	* @param None
	* @retval None
  */
void OLED_Display_On(void)
{
    OLED_WR_Byte(0X8D, OLED_CMD); //SET DCDC命令
    OLED_WR_Byte(0X14, OLED_CMD); //DCDC ON
    OLED_WR_Byte(0XAF, OLED_CMD); //DISPLAY ON
}

/**
  * @brief 关闭OLED显示    
	* @param None
	* @retval None
  */
void OLED_Display_Off(void)
{
    OLED_WR_Byte(0X8D, OLED_CMD); //SET DCDC命令
    OLED_WR_Byte(0X10, OLED_CMD); //DCDC OFF
    OLED_WR_Byte(0XAE, OLED_CMD); //DISPLAY OFF
}

/**
  * @brief 清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样
	* @param None
	* @retval None
  */
void OLED_Clear(void)
{
    uint8_t i, n;
    for (i = 0; i < 8; i++)
    {
        OLED_WR_Byte(0xb0 + i, OLED_CMD); //设置页地址（0~7）
        OLED_WR_Byte(0x00, OLED_CMD);     //设置显示位置—列低地址
        OLED_WR_Byte(0x10, OLED_CMD);     //设置显示位置—列高地址
        for (n = 0; n < 128; n++)
            OLED_WR_Byte(0, OLED_DATA);
    } //更新显示
}

/**
  * @brief 在指定位置显示一个字符,包括部分字符
	* @param x:0~127   y:0~63   mode:0,反白显示  1,正常显示	 size:选择字体 16/12 
	* @retval None
  */
void OLED_ShowChar(uint8_t x, uint8_t y, uint8_t chr)
{
    unsigned char c = 0, i = 0;
    c = chr - ' '; //得到偏移后的值
    if (x > Max_Column - 1)
    {
        x = 0;
        y = y + 2;
    }
    if (SIZE == 16)
    {
        OLED_Set_Pos(x, y);
        for (i = 0; i < 8; i++)
            OLED_WR_Byte(D8X16[c * 16 + i], OLED_DATA);
        OLED_Set_Pos(x, y + 1);
        for (i = 0; i < 8; i++)
            OLED_WR_Byte(D8X16[c * 16 + i + 8], OLED_DATA);
    }
    else
    {
        OLED_Set_Pos(x, y + 1);
        for (i = 0; i < 6; i++)
        {
            OLED_WR_Byte(D6X8[c * 6 + i], OLED_DATA);
        }
    }
}

/**
  * @brief m^n函数
	* @param None
	* @retval None
  */
uint32_t oled_pow(uint8_t m, uint8_t n)
{
    uint32_t result = 1;
    while (n--)
        result *= m;
    return result;
}

/**
  * @brief 显示2个数字
	* @param x,y :起点坐标
	*				 len :数字的位数，即显示几位有效数字
  *				 size:字体大小
  *				 mode:模式	0,填充模式;1,叠加模式
  *        num:数值(0~4294967295);
	* @retval None
  */
void OLED_ShowNum(uint8_t x, uint8_t y, uint32_t num, uint8_t len, uint8_t size)
{
    uint8_t t, temp;
    uint8_t enshow = 0;
    for (t = 0; t < len; t++)
    {
        temp = (num / oled_pow(10, len - t - 1)) % 10;
        if (enshow == 0 && t < (len - 1))
        {
            if (temp == 0)
            {
                OLED_ShowChar(x + (size / 2) * t, y, ' ');
                continue;
            }
            else
                enshow = 1;
        }
        OLED_ShowChar(x + (size / 2) * t, y, temp + '0');
    }
}

/**
  * @brief 显示一个字符号串
	* @param 
	* @retval None
  */
void OLED_ShowString(uint8_t x, uint8_t y, char *chr)
{
    unsigned char j = 0;
    while (chr[j] != '\0')
    {
        OLED_ShowChar(x, y, chr[j]);
        x += 8;
        if (x > 120)
        {
            x = 0;
            y += 2;
        }
        j++;
    }
}

/**
  * @brief 显示汉字
	* @param 
	* @retval None
  */
void OLED_ShowCHinese(uint8_t x, uint8_t y, uint8_t no)
{
    uint8_t t, adder = 0;
    OLED_Set_Pos(x, y);
    for (t = 0; t < 32; t++)
    {
        OLED_WR_Byte(SHOW[2 * no][t], OLED_DATA);
        adder += 1;
    }
    OLED_Set_Pos(x, y + 1);
    for (t = 0; t < 32; t++)
    {
        OLED_WR_Byte(SHOW[2 * no + 1][t], OLED_DATA);
        adder += 1;
    }
}

/**
  * @brief 显示显示BMP图片
	* @param 显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7
	* @retval None
  */
void OLED_DrawBMP(unsigned char x0, unsigned char y0, unsigned char x1, unsigned char y1, unsigned char BMP[])
{
    unsigned int j = 0;
    unsigned char x, y;

    if (y1 % 8 == 0)
        y = y1 / 8;
    else
        y = y1 / 8 + 1;

    for (y = y0; y < y1; y++)
    {
        OLED_Set_Pos(x0, y);
        for (x = x0; x < x1; x++)
        {
            OLED_WR_Byte(BMP[j++], OLED_DATA);
        }
    }
}

/**
  * @brief 初始化SSD1306
	* @param None
	* @retval None
  */
void GPIO_OLED_InitConfig(void)
{
    // i2c_dev_port_t i2c_dev_port = {
    // 	.SDA_GPIOx = 4,
    // 	.SCL_GPIOx = 5,
    // };
    // i2c_config = Create_I2S_obj(&i2c_dev_port, OLED_SLAVE_ADDR);
    // sof_i2c_fops_t *p_sof_i2c_fops = i2c_config->i2c_dev.fops;
    // p_sof_i2c_fops->I2C_Init_gpio(&i2c_dev_port);

    int i2c_master_port = 0;
    i2c_config_t conf;
    conf.mode = I2C_MODE_MASTER;
    conf.sda_io_num = 4;
    conf.sda_pullup_en = 0;
    conf.scl_io_num = 5;
    conf.scl_pullup_en = 0;
    ESP_ERROR_CHECK(i2c_driver_install(i2c_master_port, conf.mode));
    ESP_ERROR_CHECK(i2c_param_config(i2c_master_port, &conf));

    OLED_WR_Byte(0xAE, OLED_CMD); //--turn off oled panel
    OLED_WR_Byte(0x40, OLED_CMD); //---set low column address
    OLED_WR_Byte(0xB0, OLED_CMD); //---set high column address

    OLED_WR_Byte(0xC8, OLED_CMD); //-not offset

    OLED_WR_Byte(0x81, OLED_CMD); //设置对比度
    OLED_WR_Byte(0xff, OLED_CMD);

    OLED_WR_Byte(0xa1, OLED_CMD); //段重定向设置

    OLED_WR_Byte(0xa6, OLED_CMD); //

    OLED_WR_Byte(0xa8, OLED_CMD); //设置驱动路数
    OLED_WR_Byte(0x1f, OLED_CMD);

    OLED_WR_Byte(0xd3, OLED_CMD);
    OLED_WR_Byte(0x00, OLED_CMD);

    OLED_WR_Byte(0xd5, OLED_CMD);
    OLED_WR_Byte(0xf0, OLED_CMD);

    OLED_WR_Byte(0xd9, OLED_CMD);
    OLED_WR_Byte(0x22, OLED_CMD);

    OLED_WR_Byte(0xda, OLED_CMD);
    OLED_WR_Byte(0x02, OLED_CMD);

    OLED_WR_Byte(0xdb, OLED_CMD);
    OLED_WR_Byte(0x49, OLED_CMD);

    OLED_WR_Byte(0x8d, OLED_CMD);
    OLED_WR_Byte(0x14, OLED_CMD);

    OLED_WR_Byte(0xAF, OLED_CMD); /*display ON*/
    OLED_Clear();
    OLED_Set_Pos(0, 0);

    // OLED_ShowString(35, 2, "OLED_OK!222");
    // vTaskDelay(2000 / portTICK_PERIOD_MS);
    // OLED_Clear();
}